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winex11.drv: Implement a framework for dragging from X and dropping to OLE.

This commit is contained in:
Damjan Jovanovic 2010-08-16 21:10:05 +02:00 committed by Alexandre Julliard
parent 6871341c3c
commit 685e66e51d
2 changed files with 345 additions and 9 deletions
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4
dlls/winex11.drv/Makefile.in
View File

@ -3,8 +3,8 @@ TOPOBJDIR = ../..
SRCDIR = @srcdir@
VPATH = @srcdir@
MODULE = winex11.drv
IMPORTS = user32 gdi32 advapi32 imm32
DELAYIMPORTS = comctl32
IMPORTS = uuid user32 gdi32 advapi32 imm32
DELAYIMPORTS = comctl32 ole32
EXTRAINCL = @X_CFLAGS@
EXTRALIBS = @X_LIBS@ @X_PRE_LIBS@ @XLIB@ @X_EXTRA_LIBS@

350
dlls/winex11.drv/xdnd.c
View File

@ -34,8 +34,11 @@
#include "wingdi.h"
#include "winuser.h"
#define COBJMACROS
#include "x11drv.h"
#include "shlobj.h" /* DROPFILES */
#include "oleidl.h"
#include "objidl.h"
#include "wine/unicode.h"
#include "wine/debug.h"
@ -58,6 +61,13 @@ typedef struct tagXDNDDATA
static struct list xdndData = LIST_INIT(xdndData);
static POINT XDNDxy = { 0, 0 };
static IDataObject XDNDDataObject;
static BOOL XDNDAccepted = FALSE;
static DWORD XDNDDropEffect = DROPEFFECT_NONE;
/* the last window the mouse was over */
static HWND XDNDLastTargetWnd;
/* might be a ancestor of XDNDLastTargetWnd */
static HWND XDNDLastDropTargetWnd;
static void X11DRV_XDND_InsertXDNDData(int property, int format, void* data, unsigned int len);
static int X11DRV_XDND_DeconstructTextURIList(int property, void* data, int len);
@ -81,6 +91,109 @@ static CRITICAL_SECTION_DEBUG critsect_debug =
static CRITICAL_SECTION xdnd_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
/* Based on functions in dlls/ole32/ole2.c */
static HANDLE get_droptarget_local_handle(HWND hwnd)
{
static const WCHAR prop_marshalleddroptarget[] =
{'W','i','n','e','M','a','r','s','h','a','l','l','e','d','D','r','o','p','T','a','r','g','e','t',0};
HANDLE handle;
HANDLE local_handle = 0;
handle = GetPropW(hwnd, prop_marshalleddroptarget);
if (handle)
{
DWORD pid;
HANDLE process;
GetWindowThreadProcessId(hwnd, &pid);
process = OpenProcess(PROCESS_DUP_HANDLE, FALSE, pid);
if (process)
{
DuplicateHandle(process, handle, GetCurrentProcess(), &local_handle, 0, FALSE, DUPLICATE_SAME_ACCESS);
CloseHandle(process);
}
}
return local_handle;
}
static HRESULT create_stream_from_map(HANDLE map, IStream **stream)
{
HRESULT hr = E_OUTOFMEMORY;
HGLOBAL hmem;
void *data;
MEMORY_BASIC_INFORMATION info;
data = MapViewOfFile(map, FILE_MAP_READ, 0, 0, 0);
if(!data) return hr;
VirtualQuery(data, &info, sizeof(info));
TRACE("size %d\n", (int)info.RegionSize);
hmem = GlobalAlloc(GMEM_MOVEABLE, info.RegionSize);
if(hmem)
{
memcpy(GlobalLock(hmem), data, info.RegionSize);
GlobalUnlock(hmem);
hr = CreateStreamOnHGlobal(hmem, TRUE, stream);
}
UnmapViewOfFile(data);
return hr;
}
static IDropTarget* get_droptarget_pointer(HWND hwnd)
{
IDropTarget *droptarget = NULL;
HANDLE map;
IStream *stream;
map = get_droptarget_local_handle(hwnd);
if(!map) return NULL;
if(SUCCEEDED(create_stream_from_map(map, &stream)))
{
CoUnmarshalInterface(stream, &IID_IDropTarget, (void**)&droptarget);
IStream_Release(stream);
}
CloseHandle(map);
return droptarget;
}
/**************************************************************************
* X11DRV_XDND_XdndActionToDROPEFFECT
*/
static DWORD X11DRV_XDND_XdndActionToDROPEFFECT(long action)
{
/* In Windows, nothing but the given effects is allowed.
* In X the given action is just a hint, and you can always
* XdndActionCopy and XdndActionPrivate, so be more permissive. */
if (action == x11drv_atom(XdndActionCopy))
return DROPEFFECT_COPY;
else if (action == x11drv_atom(XdndActionMove))
return DROPEFFECT_MOVE | DROPEFFECT_COPY;
else if (action == x11drv_atom(XdndActionLink))
return DROPEFFECT_LINK | DROPEFFECT_COPY;
else if (action == x11drv_atom(XdndActionAsk))
/* FIXME: should we somehow ask the user what to do here? */
return DROPEFFECT_COPY | DROPEFFECT_MOVE | DROPEFFECT_LINK;
FIXME("unknown action %ld, assuming DROPEFFECT_COPY\n", action);
return DROPEFFECT_COPY;
}
/**************************************************************************
* X11DRV_XDND_DROPEFFECTToXdndAction
*/
static long X11DRV_XDND_DROPEFFECTToXdndAction(DWORD effect)
{
if (effect == DROPEFFECT_COPY)
return x11drv_atom(XdndActionCopy);
else if (effect == DROPEFFECT_MOVE)
return x11drv_atom(XdndActionMove);
else if (effect == DROPEFFECT_LINK)
return x11drv_atom(XdndActionLink);
FIXME("unknown drop effect %u, assuming XdndActionCopy\n", effect);
return x11drv_atom(XdndActionCopy);
}
/**************************************************************************
* X11DRV_XDND_EnterEvent
*
@ -104,6 +217,8 @@ void X11DRV_XDND_EnterEvent( HWND hWnd, XClientMessageEvent *event )
return;
}
XDNDAccepted = FALSE;
/* If the source supports more than 3 data types we retrieve
* the entire list. */
if (event->data.l[1] & 1)
@ -159,12 +274,79 @@ void X11DRV_XDND_PositionEvent( HWND hWnd, XClientMessageEvent *event )
{
XClientMessageEvent e;
int accept = 0; /* Assume we're not accepting */
IDropTarget *dropTarget = NULL;
DWORD effect;
POINTL pointl;
HWND targetWindow;
HRESULT hr;
XDNDxy.x = event->data.l[2] >> 16;
XDNDxy.y = event->data.l[2] & 0xFFFF;
targetWindow = WindowFromPoint(XDNDxy);
/* FIXME: Notify OLE of DragEnter. Result determines if we accept */
pointl.x = XDNDxy.x;
pointl.y = XDNDxy.y;
effect = X11DRV_XDND_XdndActionToDROPEFFECT(event->data.l[4]);
if (!XDNDAccepted || XDNDLastTargetWnd != targetWindow)
{
/* Notify OLE of DragEnter. Result determines if we accept */
HWND dropTargetWindow;
if (XDNDLastDropTargetWnd)
{
dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
if (dropTarget)
{
hr = IDropTarget_DragLeave(dropTarget);
if (FAILED(hr))
WARN("IDropTarget_DragLeave failed, error 0x%08X\n", hr);
IDropTarget_Release(dropTarget);
}
}
dropTargetWindow = targetWindow;
do
{
dropTarget = get_droptarget_pointer(dropTargetWindow);
} while (dropTarget == NULL && (dropTargetWindow = GetParent(dropTargetWindow)) != NULL);
XDNDLastTargetWnd = targetWindow;
XDNDLastDropTargetWnd = dropTargetWindow;
if (dropTarget)
{
hr = IDropTarget_DragEnter(dropTarget, &XDNDDataObject,
MK_LBUTTON, pointl, &effect);
if (SUCCEEDED(hr))
{
if (effect != DROPEFFECT_NONE)
{
XDNDAccepted = TRUE;
TRACE("the application accepted the drop\n");
}
else
TRACE("the application refused the drop\n");
}
else
WARN("IDropTarget_DragEnter failed, error 0x%08X\n", hr);
IDropTarget_Release(dropTarget);
}
}
if (XDNDAccepted && XDNDLastTargetWnd == targetWindow)
{
/* If drag accepted notify OLE of DragOver */
dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
if (dropTarget)
{
hr = IDropTarget_DragOver(dropTarget, MK_LBUTTON, pointl, &effect);
if (SUCCEEDED(hr))
XDNDDropEffect = effect;
else
WARN("IDropTarget_DragOver failed, error 0x%08X\n", hr);
IDropTarget_Release(dropTarget);
}
}
if (XDNDAccepted)
accept = 1;
if (GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)
accept = 1;
@ -185,14 +367,12 @@ void X11DRV_XDND_PositionEvent( HWND hWnd, XClientMessageEvent *event )
e.data.l[2] = 0; /* Empty Rect */
e.data.l[3] = 0; /* Empty Rect */
if (accept)
e.data.l[4] = event->data.l[4];
e.data.l[4] = X11DRV_XDND_DROPEFFECTToXdndAction(effect);
else
e.data.l[4] = None;
wine_tsx11_lock();
XSendEvent(event->display, event->data.l[0], False, NoEventMask, (XEvent*)&e);
wine_tsx11_unlock();
/* FIXME: if drag accepted notify OLE of DragOver */
}
/**************************************************************************
@ -203,6 +383,7 @@ void X11DRV_XDND_PositionEvent( HWND hWnd, XClientMessageEvent *event )
void X11DRV_XDND_DropEvent( HWND hWnd, XClientMessageEvent *event )
{
XClientMessageEvent e;
IDropTarget *dropTarget;
TRACE("\n");
@ -210,7 +391,30 @@ void X11DRV_XDND_DropEvent( HWND hWnd, XClientMessageEvent *event )
if (GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)
X11DRV_XDND_SendDropFiles( hWnd );
/* FIXME: Notify OLE of Drop */
/* Notify OLE of Drop */
dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
if (dropTarget)
{
HRESULT hr;
POINTL pointl;
DWORD effect = XDNDDropEffect;
pointl.x = XDNDxy.x;
pointl.y = XDNDxy.y;
hr = IDropTarget_Drop(dropTarget, &XDNDDataObject, MK_LBUTTON,
pointl, &effect);
if (SUCCEEDED(hr))
{
if (effect != DROPEFFECT_NONE)
TRACE("drop succeeded\n");
else
TRACE("the application refused the drop\n");
}
else
WARN("drop failed, error 0x%08X\n", hr);
IDropTarget_Release(dropTarget);
}
X11DRV_XDND_FreeDragDropOp();
/* Tell the target we are finished. */
@ -233,11 +437,21 @@ void X11DRV_XDND_DropEvent( HWND hWnd, XClientMessageEvent *event )
*/
void X11DRV_XDND_LeaveEvent( HWND hWnd, XClientMessageEvent *event )
{
IDropTarget *dropTarget;
TRACE("DND Operation canceled\n");
X11DRV_XDND_FreeDragDropOp();
/* Notify OLE of DragLeave */
dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
if (dropTarget)
{
HRESULT hr = IDropTarget_DragLeave(dropTarget);
if (FAILED(hr))
WARN("IDropTarget_DragLeave failed, error 0x%08X\n", hr);
IDropTarget_Release(dropTarget);
}
/* FIXME: Notify OLE of DragLeave */
X11DRV_XDND_FreeDragDropOp();
}
@ -566,6 +780,9 @@ static void X11DRV_XDND_FreeDragDropOp(void)
}
XDNDxy.x = XDNDxy.y = 0;
XDNDLastTargetWnd = NULL;
XDNDLastDropTargetWnd = NULL;
XDNDAccepted = FALSE;
LeaveCriticalSection(&xdnd_cs);
}
@ -685,3 +902,122 @@ static WCHAR* X11DRV_XDND_URIToDOS(char *encodedURI)
HeapFree(GetProcessHeap(), 0, uri);
return ret;
}
/* The IDataObject singleton we feed to OLE follows */
static HRESULT WINAPI XDNDDATAOBJECT_QueryInterface(IDataObject *dataObject,
REFIID riid, void **ppvObject)
{
TRACE("(%p, %s, %p)\n", dataObject, debugstr_guid(riid), ppvObject);
if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDataObject))
{
*ppvObject = dataObject;
IDataObject_AddRef(dataObject);
return S_OK;
}
*ppvObject = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI XDNDDATAOBJECT_AddRef(IDataObject *dataObject)
{
TRACE("(%p)\n", dataObject);
return 2;
}
static ULONG WINAPI XDNDDATAOBJECT_Release(IDataObject *dataObject)
{
TRACE("(%p)\n", dataObject);
return 1;
}
static HRESULT WINAPI XDNDDATAOBJECT_GetData(IDataObject *dataObject,
FORMATETC *formatEtc,
STGMEDIUM *pMedium)
{
FIXME("(%p, %p, %p): stub\n", dataObject, formatEtc, pMedium);
return E_NOTIMPL;
}
static HRESULT WINAPI XDNDDATAOBJECT_GetDataHere(IDataObject *dataObject,
FORMATETC *formatEtc,
STGMEDIUM *pMedium)
{
FIXME("(%p, %p, %p): stub\n", dataObject, formatEtc, pMedium);
return DATA_E_FORMATETC;
}
static HRESULT WINAPI XDNDDATAOBJECT_QueryGetData(IDataObject *dataObject,
FORMATETC *formatEtc)
{
FIXME("(%p, %p): stub\n", dataObject, formatEtc);
return E_NOTIMPL;
}
static HRESULT WINAPI XDNDDATAOBJECT_GetCanonicalFormatEtc(IDataObject *dataObject,
FORMATETC *formatEtc,
FORMATETC *formatEtcOut)
{
FIXME("(%p, %p, %p): stub\n", dataObject, formatEtc, formatEtcOut);
formatEtcOut->ptd = NULL;
return E_NOTIMPL;
}
static HRESULT WINAPI XDNDDATAOBJECT_SetData(IDataObject *dataObject,
FORMATETC *formatEtc,
STGMEDIUM *pMedium, BOOL fRelease)
{
FIXME("(%p, %p, %p, %s): stub\n", dataObject, formatEtc,
pMedium, fRelease?"TRUE":"FALSE");
return E_NOTIMPL;
}
static HRESULT WINAPI XDNDDATAOBJECT_EnumFormatEtc(IDataObject *dataObject,
DWORD dwDirection,
IEnumFORMATETC **ppEnumFormatEtc)
{
FIXME("(%p, %u, %p): stub\n", dataObject, dwDirection, ppEnumFormatEtc);
return E_NOTIMPL;
}
static HRESULT WINAPI XDNDDATAOBJECT_DAdvise(IDataObject *dataObject,
FORMATETC *formatEtc, DWORD advf,
IAdviseSink *adviseSink,
DWORD *pdwConnection)
{
FIXME("(%p, %p, %u, %p, %p): stub\n", dataObject, formatEtc, advf,
adviseSink, pdwConnection);
return OLE_E_ADVISENOTSUPPORTED;
}
static HRESULT WINAPI XDNDDATAOBJECT_DUnadvise(IDataObject *dataObject,
DWORD dwConnection)
{
FIXME("(%p, %u): stub\n", dataObject, dwConnection);
return OLE_E_ADVISENOTSUPPORTED;
}
static HRESULT WINAPI XDNDDATAOBJECT_EnumDAdvise(IDataObject *dataObject,
IEnumSTATDATA **pEnumAdvise)
{
FIXME("(%p, %p): stub\n", dataObject, pEnumAdvise);
return OLE_E_ADVISENOTSUPPORTED;
}
static IDataObjectVtbl xdndDataObjectVtbl =
{
XDNDDATAOBJECT_QueryInterface,
XDNDDATAOBJECT_AddRef,
XDNDDATAOBJECT_Release,
XDNDDATAOBJECT_GetData,
XDNDDATAOBJECT_GetDataHere,
XDNDDATAOBJECT_QueryGetData,
XDNDDATAOBJECT_GetCanonicalFormatEtc,
XDNDDATAOBJECT_SetData,
XDNDDATAOBJECT_EnumFormatEtc,
XDNDDATAOBJECT_DAdvise,
XDNDDATAOBJECT_DUnadvise,
XDNDDATAOBJECT_EnumDAdvise
};
static IDataObject XDNDDataObject = { &xdndDataObjectVtbl };